| article html file updated | 7 February 2020 20:54 CET | Update | https://www.mdpi.com/1999-4893/10/1/7 |
| article html file updated | 22 September 2019 18:32 CEST | Update | - |
| article html file updated | 4 May 2019 16:32 CEST | Update | - |
| article html file updated | 28 March 2017 11:50 CEST | Update | - |
| article html file updated | 6 January 2017 10:55 CET | Original file | - |
| article xml uploaded. | 6 January 2017 10:53 CET | Original file | https://www.mdpi.com/1999-4893/10/1/7/xml |
| article pdf uploaded. | 6 January 2017 10:53 CET | Version of Record | https://www.mdpi.com/1999-4893/10/1/7/pdf |
